MAN.243 Rev.5 ENG - Use and maintenance manual S28 page 115 of 138
12 Operating tests
During the commissioning of the machine, we
carried out the following final operation tests.
We have tested the correct operation of the
S28 and of its safety systems.
▪ Block of the operation in case of
release of the selected operation
lever.
▪ Basket levelling allowed only when
the MEWP aerial part is set in the rest
position (pantograph on its support
and telescopic boom on its support).
▪ Manual pump for operations in case
of emergency.
▪ Outriggers-boom operation interlock.
▪ MEWP aerial part operations block
when the MEWP is not stabilized
▪ Block of the return/extension of
outriggers when the MEWP aerial
part is not set in the rest position.
▪ Stabilized machine – signal light.
▪ MEWP electrical power – signal light.
▪ Outriggers closed – signal light.
▪ Rotating blinker (*optional).
▪ Emergency buttons in the control
stations.
▪ Lock valves on cylinders.
▪ Max pressure valve for the protection
of the whole hydraulic circuit.
▪ Max pressure valves for the
protection of the single parts of the
system.
▪ Electrical system protection fuse.
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